NAND: add the ability to directly write yaffs image

[people/ms/u-boot.git] / include / nand.h

diff --git a/include/nand.h b/include/nand.h
index 905115b3dac4114a45cfcb257cc33652435c4cc7..7459bd0330a1b16f9153b8e1ee3dc2134739bf63 100644 (file)
--- a/include/nand.h
+++ b/include/nand.h
@@ -24,31 +24,35 @@
 #ifndef _NAND_H_
 #define _NAND_H_
 
+extern void nand_init(void);
+
 #include <linux/mtd/compat.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 
+extern int board_nand_init(struct nand_chip *nand);
+
 typedef struct mtd_info nand_info_t;
 
 extern int nand_curr_device;
 extern nand_info_t nand_info[];
 
-static inline int nand_read(nand_info_t *info, ulong ofs, ulong *len, u_char *buf)
+static inline int nand_read(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf)
 {
        return info->read(info, ofs, *len, (size_t *)len, buf);
 }
 
-static inline int nand_write(nand_info_t *info, ulong ofs, ulong *len, u_char *buf)
+static inline int nand_write(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf)
 {
        return info->write(info, ofs, *len, (size_t *)len, buf);
 }
 
-static inline int nand_block_isbad(nand_info_t *info, ulong ofs)
+static inline int nand_block_isbad(nand_info_t *info, loff_t ofs)
 {
        return info->block_isbad(info, ofs);
 }
 
-static inline int nand_erase(nand_info_t *info, ulong off, ulong size)
+static inline int nand_erase(nand_info_t *info, loff_t off, size_t size)
 {
        struct erase_info instr;
 
@@ -60,4 +64,81 @@ static inline int nand_erase(nand_info_t *info, ulong off, ulong size)
        return info->erase(info, &instr);
 }
 
+
+/*****************************************************************************
+ * declarations from nand_util.c
+ ****************************************************************************/
+
+struct nand_write_options {
+       u_char *buffer;         /* memory block containing image to write */
+       ulong length;           /* number of bytes to write */
+       ulong offset;           /* start address in NAND */
+       int quiet;              /* don't display progress messages */
+       int autoplace;          /* if true use auto oob layout */
+       int forcejffs2;         /* force jffs2 oob layout */
+       int forceyaffs;         /* force yaffs oob layout */
+       int noecc;              /* write without ecc */
+       int writeoob;           /* image contains oob data */
+       int pad;                /* pad to page size */
+       int blockalign;         /* 1|2|4 set multiple of eraseblocks
+                                * to align to */
+};
+
+typedef struct nand_write_options nand_write_options_t;
+typedef struct mtd_oob_ops mtd_oob_ops_t;
+
+struct nand_read_options {
+       u_char *buffer;         /* memory block in which read image is written*/
+       ulong length;           /* number of bytes to read */
+       ulong offset;           /* start address in NAND */
+       int quiet;              /* don't display progress messages */
+       int readoob;            /* put oob data in image */
+};
+
+typedef struct nand_read_options nand_read_options_t;
+
+struct nand_erase_options {
+       loff_t length;          /* number of bytes to erase */
+       loff_t offset;          /* first address in NAND to erase */
+       int quiet;              /* don't display progress messages */
+       int jffs2;              /* if true: format for jffs2 usage
+                                * (write appropriate cleanmarker blocks) */
+       int scrub;              /* if true, really clean NAND by erasing
+                                * bad blocks (UNSAFE) */
+
+       /* Don't include skipped bad blocks in size to be erased */
+       int spread;
+};
+
+typedef struct nand_erase_options nand_erase_options_t;
+
+int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
+                      u_char *buffer);
+int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
+                       u_char *buffer, int withoob);
+int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts);
+
+#define NAND_LOCK_STATUS_TIGHT 0x01
+#define NAND_LOCK_STATUS_LOCK  0x02
+#define NAND_LOCK_STATUS_UNLOCK 0x04
+
+int nand_lock( nand_info_t *meminfo, int tight );
+int nand_unlock( nand_info_t *meminfo, ulong start, ulong length );
+int nand_get_lock_status(nand_info_t *meminfo, loff_t offset);
+
+#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
+void board_nand_select_device(struct nand_chip *nand, int chip);
+#endif
+
+__attribute__((noreturn)) void nand_boot(void);
+
+#endif
+
+#ifdef CONFIG_ENV_OFFSET_OOB
+#define ENV_OOB_MARKER 0x30425645 /*"EVB0" in little-endian -- offset is stored
+                                   as block number*/
+#define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is
+                                       stored as byte number */
+#define ENV_OFFSET_SIZE 8
+int get_nand_env_oob(nand_info_t *nand, unsigned long *result);
 #endif